Commercial Geiger counters can cost hundreds of dollars. Build your own at a fraction of the price! This easy-to-solder kit can be built in an evening and it works just like you think it would; clicking and blinking in the presence of radiation. Just follow the instructions here to build... Read more »

NOTE: This project is under construction! It’s very, very rough right now. This project will require a 3D printer such as a MakerBot. You can also use a service such as Shapeways to have the files printed for you. You’ll be assembling a mechanical set of ears based on servo... Read more »